[tex] \text{Preferred share par value = $30} [/tex]
[tex] \text{Dividend per share (Dp) = $10 ($100×10%)} [/tex]
[tex] \text{Normal rate of return (rp)} [/tex]
[tex] \text{rp =} \frac{Dp}{Vp} [/tex]
Where,
[tex] \text{Vp = price of preferred share} [/tex]
[tex] \text{Dp = dividend per share} [/tex]
[tex] \text{Rp = normal rate of return of preferred share} [/tex]